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Stock-Based Compensation - Narrative (Details)	1 Months Ended	3 Months Ended		9 Months Ended
Stock-Based Compensation - Narrative (Details)	May 31, 2024 USD ($)	Sep. 30, 2024 USD ($) shares	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) director $ / shares shares	Sep. 30, 2023 USD ($)
Stock-Based Compensation
Stock-based compensation expense		$ 4,700,000	$ 6,600,000	$ 15,100,000	$ 17,800,000
Vesting period				60 days
Unrecognized compensation costs related to unvested share-based compensation arrangements		$ 29,500,000		$ 29,500,000
Weighted-average period for recognition of unrecognized stock-based compensation expense				2 years 3 months 18 days
Number Of Directors \| director				7,000
Share-based Compensation Arrangement by Share-based Payment Award, Description	4,692
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	$ 173.89
Compensation expense	$ 800,000
Restricted Stock Units
Stock-Based Compensation
Awarded (in shares) \| shares				161,054
Weighted average granted date fair value (in dollars per share) \| $ / shares				$ 177.60
Phantom Share Units (PSUs)
Stock-Based Compensation
Vesting period				3 years
Non-Qualified Stock Options \| Stock Option and Restricted Stock Unit Plan 2011
Stock-Based Compensation
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized \| shares		16,300,000		16,300,000
Employees \| Restricted Stock Units
Stock-Based Compensation
Vesting period				4 years
Director [Member]
Stock-Based Compensation
Allocated share based compensation expense				$ 900,000